No, but Muhammad Ali did. He accepted a challenge from a Japanese wrestler named Antonio Inoki, and then he demanded that the rules be striking only once he saw Inoki fight. And he supposedly had his legs broken from all the low kicks. I found a real grainy video somewhere... it looked like a boring ass fight.

It went to decision and was declared a draw.

Inoki founded New Japan Pro Wrestling and had the last fight of his career against Don Frye.

there's a clip out, after one of Sapp's K1 fights, he calls out Tyson. Tyson steps into the ring and they get into a shoving match. Then Bob Sapp says "They call you Kid Dynamite, well i'ma put your fuse out" and Tyson repeatedly says..."Sign the contract...sign the contract..."

I'm at work so I can't search for the clip, but I'll upload it or something when I go home